How to write a good Journal of Solid State Circuits paper Bram Nauta JSSC Editor in Chief University of Twente, The Netherlands b.nauta@utwente.nl http://icd.ewi.utwente.nl November 2008 1 [A-SSCC 2008, Fukuoka, Japan] Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 2 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 3 History • Established in 1966 – 4 issues per year • Volume 1, nr 1: ISSCC 1966 issue • Purpose= archive 4 TODAY • The Nr 1 IEEE Journal • By far: most downloaded IEEE Journal • By far: most cited in all US Patents – Over all technical disciplines 5 References in patents from top 25 companies to top 20 publishers 6 Top cited IEEE Journals in patents Rank 1 2 3 4 5 6 7 8 9 Title IEEE Journal of Solid-State Circuits IEEE Transactions on Electron Devices IEEE Transactions on Communications IEEE Photonics Technology Letters Journal of Lightwave Technology Proceedings of the IEEE IEEE Transactions on Magnetics IEEE Transactions on Computing IEEE J on Selected Areas in Communications Cites 14,765 8,824 8,678 8,383 5,989 5,338 5,071 4,393 4,148 7 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 8 Conferences • Fast publication • Usually a smaller idea – Benchmark: Known circuit in new technology – Smaller trick can be o.k. – depends on conference • Just accept or reject; no rewrite – It may be incomplete – It may lack key references • Good for networking and Q&A • SSCS conferences are available on IEEExplore 9 Journal publication • Academic reputation – Journals can have more status than conferences • Depends on the field • Reviewed Journal gives a “quality stamp” – Reviewers demand corrections & clarifications • Archive your work – Wider scope – More theory – More technical information – More Educational – More references 10 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 11 Organization regular JSSC papers Editor Associate Editor Reviewers Author 12 Associate Editors • • • • • • • • • • Baas, Bevan Behzad, Arya Flynn, Michael Gharpurey, Ranjit Gillingham, Peter Halonen, Kari Karanicolas, Andrew Kim, Beomsup, Leenaerts, Domine Liu, Shen-Iuan, Mok, Philip Nairn David Natarajan Shreedhar Rusu, Stefan Razavi, Behzad, Savoj, Jafar Shaeffer, Derek Shepard, ken Young, Darrin 13 Special Issues on conferences • • • • • • • • • December January April May July August September October November ISSCC-analog, RF ISSCC-dig+rest VLSI RFIC ESSCIRC CICC BCTM CSIC A-SSC (issue) (issue) (issue) (section) (issue) (issue) (section) (section) (section) 14 Organization special Issue Editor Associate Editor Reviewers Author Guest Editor Reviewers 15 Procedure (regular papers) • • • • Author submits manuscript to Editor Editor sends to Associate editor Associate Editor sends to reviewers Associate Editor makes decision: – AWR accept with revisions ☺ – REJ reject – REF refer to other Journal Its not a democratic process!!!!!!!!!!! 16 Procedure (regular papers) • Author rewrites – Give list of how you changed manuscript based on reviewers comments – Do not reply to reviewer but change your manuscript • Associate Editor makes final decision • OR: Associate Editor organizes second review • Author submits final package to Associate Editor • Associate Editor inspects and forwards to Editor • Editor compiles issues and sends to IEEE 17 Time schedule (regular papers) • Delay to first decision • Delay author rewrite • Publication delay ~100 days ~100 days ~140 days • Total delay ~340 days 18 Origin of regular papers • 365 submissions/year: 1/day – Asia – USA – EU – ROW 40% (Taiwanese Universities) 25% 25% 10% • Same regional distribution as ISSCC • 90% is analog/RF!! 19 Accept/reject regular papers • • • • Accept Reject Refer to other Journal Withdrawn 36% 58% 3% 3% • Main reject reasons: – Not enough novelty/innovation – Not enough news w.r.t. prepublication 20 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 21 What papers are good for JSSC? • IC Implementation oriented – Not: microwave PCP/ modeling/ device only • Not too much theory ( Better use TCAS) • Integrated Circuit needed • But to have an IC is not enough! The work must be of HIGH Quality 22 What is high quality? • Must describe an INNOVATIVE IDEA – Not just a permutation – Not a know circuit in new technology – Not a combination of known techniques – But a real new concept / invention • AND idea must be proven on IC • AND idea must significantly advance state-of- art 23 Prepublication • ~90% of submitted papers have prepublication at conference(s) – That’s ok • Conferences are available on IEEExplore • So a JSSCC paper should add significant information to the prepublications 24 Prepublication policy • “A JSSCC paper should be worth reading for a person who has read the conference paper.” – Better description of state-of-art – More theory + proof of concept – More measurements – More discussion (mismatch, no-idealities etc) – More benchmark, more discussion – More references 25 Prepublication policy • NOT each conference paper deserves to be a JSSC paper • NOR each work without prepublication deserves to be a JSSC paper • It’s a delicate thing, but all about QUALITY 26 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 27 A Typical paper outline • • • • • • • • Title Abstract Introduction Body Experimental results Discussion Conclusion references 28 The Title • Must describe the paper • Not too vague – “A novel receiver” • Do not use “novel” anyway – “5-GHz RF Frontends for Ultra-Low-Voltage and UltraLow-Power Operations” • How much is is Ultra? • But exactly what is really new: – “Noise canceling technique for wideband receivers” • Or exactly what is achieved – “A 1.5GHz 1.3dB NF, 10mW down converter in 65nm CMOS for GPS applications” • Or both! 29 Abstract • • • • 1 paragraph Exactly what paper is about Can have overlap with conclusions Keywords, indexing terms – Use many!! – So your paper can be found – You will be cited a lot 30 Introduction • Describe the problem you solve – – – – Open the subject Zoom in step by step Describe your assumptions Each step is one paragraph • Describe the state-of-art – Use plenty of references • Tell basic your idea – This motivates the reader to continue – Cite your prepublications and tell the difference • Give outline 31 The body • Explain your key idea • Build up Step by step – One thinking step at the time – Each step is one paragraph • Proof that it makes sense – Use mathematics – Give exactly your boundary conditions – Give results in comprehensive way 32 The body • Be self-critical and realistic: – does it really make sense? • E.g. for a linearity improvement technique: – If power dissipation is larger – And noise is also larger – And you know that P~SNR: does this make sense? • Is it just the technology or your smartness? – E.g. speed ~fT or fmax • Are practical boundary conditions met? – VCO @ high frequency but Pout=-30dBm 33 Experimental Results • Describe exactly what has been measured and how. – – – – – – – Describe setup “Bio Biased”? (manual tweaking and tuning) Probe or PCB? What equipment? How many samples? PVT? Batch to batch spread? • Experiment must be repeatable and of practical use (e.g. for industry) 34 Experimental Results • Compare with theory / simulations • Does it prove your idea and theory? • Always tell if a result is measures. Simulated or calculated. “Figure x shows the noisefigure versus frequency” is this measured? Simulated? Calculated? Estimated? 35 IC realization • Give chip photograph – Dimensions – What is what • Give technology + options 36 Discuss results • Compare to state-of-art in fair way – Show all relevant data + papers – A table can help • although measurements are hard to compare • Use common FoM definitions – ADC, VCO, filter • Be careful to define your own FoM – Do not misuse FoM for showing off – Power ~ SNR. BW makes sense – Power/bondpad is NOT a good FoM!! 37 Discuss results • Help the reader to interpret the results • Absolute accuracy needed? – show many samples, proof batch to batch robustness • Matching needed? – show many samples • Calibrated circuits? – describe what input signal is used/required. When does it go wrong? How realistic is it? 38 Discuss Results: A useless PLL benchmark: 39 Conclusions • Start writing with this • First make a bullet list for yourself – A hand full of bullets – So you know where to write towards – This gives your paper focus • Conclusion should be readable without reading the whole paper • Convince the reader What did we learn? 40 References • Include latest state of the art – For benchmark • But also refer to the original papers – Go back in time! – Most references are younger than 5 years – While most ideas are much older! • Textbooks are useful too 41 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 42 Writing tips: A well written paper gives the impression of a good idea 43 Writing Tips • If a paper is too complex: – Reviewers don't understand it – Reviewers don’t believe it – Reviewers will not like it • If a paper is too simplistic – Reviewers think its nothing special – Even if the results are good 44 General writing tips • Make your problem relevant • Start with the “big picture” • Take the reader by the hand – Step by step explanation • • • • Highlight innovation Do not give too many equations Do not give too much theoretical details Do not try to make a tutorial 45 General writing tips • Do not use “very” but give the numbers • Avoid to use “novel” – everything you don´t cite should be novel • Use short sentences • Use simple words • One point per paragraph – First or last sentence is most important – The rest is explanation 46 General writing tips • If you are stuck: – Tell a friend what you did. – Use the words & slides like on your conference paper – Polish the text later • Let a fellow student read & comment • Ask native speaker to correct language • Polish, Polish, Polish – Reviewers hate mistakes!! – It iz raely anojing to raed tekst width misstakes 47 Figures • Make the figures like a cartoon – Reader can understand idea by looking at figures + caption only • Spend a lot of time to make good figures – Papers with bad figures almost always get rejected 48 Figures • Must be readable in single column: • Not good: 49 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 50 Do NOT • Publish the same material elsewhere – Reviewers+readers always see this; its unethical • Change your paper after acceptance and before publication – E.g. remove reference to competitor – Reviewers always see this • Use someone else´s ideas – “Someone else” is reading too • Hide “unpleasant” measurements 51 Do NOT • Fabricate or falsify results – Not tune bias for each measuring point – Not make few chips and measure different parameters on different chips – Or even completely falsify results 52 Outline • About the Journal – Yesterday and today – Journal versus Conference – Organization of the Journal – What kind of papers? • Writing tips – Paper outline – General tips • How NOT to write a JSSC paper 53 Summary • IEEE Journal of Solid-State Circuit – Most downloaded, most cited in patents • Needs an Innovative new idea – Working silicon is not enough – Must improve state-of-art • Needs new material after prepublication • Reviewers are demanding • Your writing technique can help 54